Wrench.



No. 289,245 PATENTED JUNE 2, 1908.

. M. E. LAYNE & s. N. HALL.

' 'WRENOH.

APPLIGATIOH FILED DEG.3.1907.

' 2 SHEETS-SHEET 1.

Jill W I IIWH WWI 'H II W'BTNESSE S ENVENTORS No. 889,245. PATENTED JUNE2, 1908.

M. E. LAYNE & s. N. HALL WR/ENGH.

-\FPLIOATION FILED DEG,3,1907.

i l l lliuull IIIE . type.

Iicatiohl The inventlhn relates to wrenches and urrn srnr'ns PATENTOFFICE.

MAHLON E. LAYNE RAND SAMUEL NfnAt'L, or HOUSTON, TEXAs.

WRENCH.

No. ceases; I

'lljarris and State of Texas,. have invented certain new and usefulImprovements in Wrenches, of which the following is a speciparticularlyto pipe wrenches of the chain The invention has for its objects; theprovision of simplified and improved con struction of the double actingtype; the provision of a wrench in which both of the jaws employed aresimilar, and as a result interchangeable; and the provision of awrenchof V inexpensive construction which 18 easily and e'flk-wtiwlyapplied and operated. ()ne embodiment of the invention is illustrated inthe accompanying drawings, wherein: Figure l is a side elevation ofthe-operative parts of the wrench, a portion of the handle and of thegrip chain being broken away, Figure 2 is a perspective View of the endof the handle,

Figure 3 is a side elevation of the inside face of one of the jaw-)lates,

Figure 4 is a longitu inal section through the grip jaw on the lineIV-IV of Figure 3, and

Figure 5 is an end view of the wrench. The wrench is of the general typeshown in our co-pending application Serial No. 404,934, but differstherefrom in that, the detachable engagement of the grip-chain is madewith the end of the handle instead of with the jaw plates, and thehandle is substantially straight at the end instead of being bent at anan le of 45 as in the co-pending application. I eferring to thedrawings, 1 is the handle having'the operating end 2 as show in detailin Figure 2. As here illustrated the end is enlarged and provided withthe slot 3 for the reception of the chain, and the cross-blocks 4provided at their upper ends with the hooks 5, for detachably engagingthe chain. The chain is of the type ordinarily employed in devices ofthis kind, wherein the )intles 6' project past the side plates 7, whic 1construction adapts the chain to fit between the sides of the hooks 5,while the ends of the pintles project out laterally a suflicientdistance to engage the front sides of such hooks. 8 are the jaw-plates,one of which is fitted to each side of the end of the Specification ofLetters Fatent. Application filed December 3, 1907. Serial No. 4042,935.

- vided at its 0 posit ends wit Patented June '2, 190a.

jaw-plates, and the "cross-blocks 4. The outer sides of such'blocksproject above the surface of theend 2 and constitute tongues forengagement with the jaw. plates as hereinafter set forth. Each of thelates is proli the sets of teeth 10 where ythe device is made doubleacting, that is, the pipe engaged by the wrench may be turned in bothdirections. The recess 11 is provided intermediate the sets of teeth 10in order to permit of the transfer of the pipe from one set of teeth tothe other without releasing the chain, and in order to provide the slackin the chain for its release when the pipe is placedin such centralrecess 11. Each of the j awplates is provided with the transverse groove12 for fitting over the projecting tongue portions of the the jaws .fromone side of the handle to the other, so that the. jaws on both sides areexhandle, and ch-tmped in position by means of the transverse bolt 9passing through such actly alike and only one set of dies is neces-'sary for the production of the jaw-plates.

The end of the grip chain is permanently secured in the slot 8 by meansof a rod or rivet passing through the chain, and the openings 13 in theend of the handle. This rod or rivet may be either securely fiXedin thehandle by means of heads or nuts, or may be of the same diameterthroughout and in this case prevented from displacement by means of thej aw-' lates which overlap the openings 13. It wil be seen that byarranging the permanent securing means upon the handle a as well as thehooks 5, the construction of the j aw-plates 8 is simplified andcheapenedand projecting parts on the j aw-plates are avoided which wouldrender difficult the making of such jaw-plates reversible andinterchangeable.

Having thus described our desire to secure by Letters Patent is thefollowing 1. In combination in a wrench, a handle having at the endmeans for detachably engaging a gri chain, a pair of similar andinterchangeab ei jaw-plates secured to oppoinvention and illustrated 1tsuse, what we claim as new and.

site sides of the end of the handle and each provided with two sets ofoppositel acting teeth on the same side of the jaw plate, and a gripchain secured to the end of the handle on the side opposite to the othermeans for j engaging the chain.

2. In combination 111 a wrench, a handle having hook engaging means atone side ot its end, a pair ol similar and interchangeable jawplatessecured to the opposite sides of the end of the handle and each providedwith two sets of oppositely acting teeth on the same side of the jawplate and a grip chain secured to the end of the handle on the sideopposite to the hook engaging means.

the jaws to the handle and a grip chain for cooperating with 'thejaw-plates.

(3. in combination, a handle, a pair ot'jnterchangeahle jaw-plates eachprovided with two sets of oppositely acting teeth on the same side ofthe jaw plate titting on oppositt; sides of the end of thej.l(')llgiitltll1ltll axis at an acute angle to the axis of the handle,means for rigidly securing the jaw-plates to the handle and a grip chainfastened to one slde ol the end of the handle .and. adapted tobc adustablv and dctacln'tbl v 3. A wrench comprising a handle and a pair ofjaws each provided with two sets of o positely acting; teeth on the sameside of tie jaw and titting opp site sides olthe end thereof, the saidhandle and jaws having interfitting means s vmmetrically. placed withrespect to the transverse center line of the l jaws whereby both jawswill tit either side of the handle.

t. A wrench comprising a handle and a pair of interchangcable jaws eachprovided.

with two Sets ol oppositely acting teeth on the same side of the awtoothed for double ,each provided with two sets of oppositel action, andfitting opposite sides of the end thereof, the jaws being at an angle tothe handle and having a tongue and groove. engagement transverse oi thecenter of the jaws wherebv both jaws will lit either side of the handle.

5. In combination. a handle, a pair of interchangeable jaw-plate eachprovided with same side of the jaw plate tittmg on opposite sides ol'the end of the handle and having the longitudinal axis at; an' acuteangle to the.

axis of the handle, means for rigidl securing i acting teeth on the sameside ol' the jaw arranged one on either side of the end ol' the handleand at an acute angle thereto. and a grip chain having one end securedin the slot and adapted to form a loop and be secured adjustablv to theend ol' the handle.

in testimonv whereol' we have hereunto signed our namcs'in the presenceof the two subscribing witnesses. two-sets ol' oppositely acting teethon the I .\li\llli()i\' l5. liAYXlC. SAHl'Eh N. llAlili. i tncsses'.

W. ll. lttcnvns, R. E. Ganun'rr.

handle and having the}

